diff --git a/lib/external/pattern_language b/lib/external/pattern_language
index 541844f95..4bf84d93a 160000
--- a/lib/external/pattern_language
+++ b/lib/external/pattern_language
@@ -1 +1 @@
-Subproject commit 541844f9581759a64f3614c30ae786dba5233a8b
+Subproject commit 4bf84d93aaa544fd9644867c54cdaa7d0ad73bf0